Is 21003 a prime number? What are the divisors of 21003?

## Parity of 21 003

21 003 is an odd number, because it is not evenly divisible by 2.

Find out more:

## Is 21 003 a perfect square number?

A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 21 003 is about 144.924.

Thus, the square root of 21 003 is not an integer, and therefore 21 003 is not a square number.

## What is the square number of 21 003?

The square of a number (here 21 003) is the result of the product of this number (21 003) by itself (i.e., 21 003 × 21 003); the square of 21 003 is sometimes called "raising 21 003 to the power 2", or "21 003 squared".

The square of 21 003 is 441 126 009 because 21 003 × 21 003 = 21 0032 = 441 126 009.

As a consequence, 21 003 is the square root of 441 126 009.

## Number of digits of 21 003

21 003 is a number with 5 digits.

## What are the multiples of 21 003?

The multiples of 21 003 are all integers evenly divisible by 21 003, that is all numbers such that the remainder of the division by 21 003 is zero. There are infinitely many multiples of 21 003. The smallest multiples of 21 003 are:

## Numbers near 21 003

### Nearest numbers from 21 003

Find out whether some integer is a prime number